
Windows Defender Troubleshooting Checklist
Windows Defender (now Microsoft Defender Antivirus) usually runs quietly in the background, but s...
Software troubleshooting desk

Windows Defender (now Microsoft Defender Antivirus) usually runs quietly in the background, but s...

You log out of Chrome or your computer, and when you log back in, your profile is gone—no bookmar...

If you see a "504 Gateway Timeout" error in Outlook, it usually means a network device (proxy or ...

You're browsing and suddenly Chrome shows a 'token expired' error, often accompanied by sync fail...

You're trying to install a Windows feature update or run Windows Update during setup, and you see...

After a Windows update, you might see an error that Windows Defender can't connect to the service...